Sample Distribution of X-bar Formula | Notation

If all the possible samples sizes (n) are selected, they resemble the population.  We can assume that the mean of a sample is equal to the mean of the population.  We can also assume that the Standard Error equals the population standard deviation divided by the square root of the sample size.

Sample Distribution Mu notation
Sample Mean (Left) | Population Mean (Right)

Sample standard deviation formula = population standard deviation over sqrt(n)
Standard Error (left) | Population Standard Deviation Right Divided by the Square-root of the sample size (right)




Last Modified on February 19, 2013 by JoeStat

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